martingale

• martingal

Middle French martingale, from Old Occitan martegalo, feminine form of martegal, an inhabitant of Martigues, which is from Latin maritima. Alternatively from Spanish almártaga.

martingale (plural martingales)

1. A piece of harness used on a horse to keep it from raising its head above a desired point.
2. (nautical) A spar, or piece of rigging that strengthens the bowsprit.
3. (mathematics) A stochastic process for which the conditional expectation of future values given the sequence of all prior values is equal to the current value.

   If a gambler plays a fair game repeatedly, his payoff over time is a martingale.

4. A gambling strategy in which one doubles the stake after each loss.
5. (fencing) A strap attached to the sword handle, preventing a sword being dropped if disarmed.

• (piece of harness): tie-down

• anti-martingale
• submartingale
• supermartingale

martingale (third-person singular simple present martingales, present participle martingaling, simple past and past participle martingaled)

1. To employ the martingale strategy in gambling.

martingale f

1. plural of martingala

• lagrimante